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| author | Patrick McHardy <kaber@trash.net> | 2007-04-12 22:17:05 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:29:02 -0700 |
| commit | b076deb8498e26c9aa2f44046fe5e9936ae2fb5a (patch) | |
| tree | cd0464e3c5074162ccd6bef31982064b76e976c1 /net/ipv4 | |
| parent | d3a2c3ca8e7d908824701db978b936d115aea506 (diff) | |
| download | linux-b076deb8498e26c9aa2f44046fe5e9936ae2fb5a.tar.gz linux-b076deb8498e26c9aa2f44046fe5e9936ae2fb5a.tar.bz2 linux-b076deb8498e26c9aa2f44046fe5e9936ae2fb5a.zip | |
[NETFILTER]: ipt_ULOG: add compat conversion functions
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/netfilter/ipt_ULOG.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c index d26bbd2daaa9..a2bcba70af50 100644 --- a/net/ipv4/netfilter/ipt_ULOG.c +++ b/net/ipv4/netfilter/ipt_ULOG.c @@ -349,12 +349,52 @@ static int ipt_ulog_checkentry(const char *tablename, return 1; } +#ifdef CONFIG_COMPAT +struct compat_ipt_ulog_info { + compat_uint_t nl_group; + compat_size_t copy_range; + compat_size_t qthreshold; + char prefix[ULOG_PREFIX_LEN]; +}; + +static void compat_from_user(void *dst, void *src) +{ + struct compat_ipt_ulog_info *cl = src; + struct ipt_ulog_info l = { + .nl_group = cl->nl_group, + .copy_range = cl->copy_range, + .qthreshold = cl->qthreshold, + }; + + memcpy(l.prefix, cl->prefix, sizeof(l.prefix)); + memcpy(dst, &l, sizeof(l)); +} + +static int compat_to_user(void __user *dst, void *src) +{ + struct ipt_ulog_info *l = src; + struct compat_ipt_ulog_info cl = { + .nl_group = l->nl_group, + .copy_range = l->copy_range, + .qthreshold = l->qthreshold, + }; + + memcpy(cl.prefix, l->prefix, sizeof(cl.prefix)); + return copy_to_user(dst, &cl, sizeof(cl)) ? -EFAULT : 0; +} +#endif /* CONFIG_COMPAT */ + static struct xt_target ipt_ulog_reg = { .name = "ULOG", .family = AF_INET, .target = ipt_ulog_target, .targetsize = sizeof(struct ipt_ulog_info), .checkentry = ipt_ulog_checkentry, +#ifdef CONFIG_COMPAT + .compatsize = sizeof(struct compat_ipt_ulog_info), + .compat_from_user = compat_from_user, + .compat_to_user = compat_to_user, +#endif .me = THIS_MODULE, }; |